this post was submitted on 18 Sep 2024
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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I took notes for the benefit of anyone who doesn't like their info in video form. My attempt to summarize what Linus says:
He enjoys the arguments, it's nice that Rust has livened up the discussion. It shows that people care.
It's more contentious than it should be sometimes with religious overtones reminiscent of vi versus emacs. Some like it, some don't, and that's okay.
Too early to see if Rust in the kernel ultimately fails or succeeds, that will take time, but he's optimistic about it.
The kernel is not normal C. They use tools that enforce rules that are not part of the language, including memory safety infrastructure. This has been incrementally added over a long time, which is what allowed people to do it without the kind of outcry that the Rust efforts produce by trying to change things more quickly.
There aren't many languages that can deal with system issues, so unless you want to use assembler it's going to be C, C-like, or Rust. So probably there will be some systems other than Linux that do use Rust.
If you make your own he's looking forward to seeing it.
Isn't there Redox OS?
Edit: yes, it's still alive and kicking.
I think Linus mentioned Redox directly during the interview
what did he say about it?
He just mentioned it as an example of a kernel written in Rust. The interviewer asked if Rust isn't accepted into the Linux kernel, would someone go out and build their own in Rust, and Linus mentioned Redox saying that's already happened.